磨床内圆磨具正常使用基本不会损坏 ,但加工高铬铸铁缸套 ,因其硬度高 ,加工条件差 ,工件内孔存在椭圆 ,间断磨削严重 ,磨具损坏大。主要问题是磨具轴承外圈与磨具轴承孔产生相互圆周运动。由于没有专用设备 ,一般机械厂制造磨具都很困难。磨具壳体 (见图 1)两端轴承孔同轴度和 Grinder internal circular grinding machine will not damage the normal use of the basic, but the processing of high chromium cast iron cylinder liner, because of its high hardness, poor processing conditions, the workpiece hole oval, severe intermittent grinding, abrasive damage. The main problem is that the abrasive bearing outer ring and the abrasive bearing bore produce mutual circular motion. Because there is no special equipment, general machinery factory manufacturing abrasive are very difficult. Abrasive shell (see Figure 1) bearing holes at both ends of the coaxiality and